Catalina host, Mojave VM. Whenever the host screen saver quits, I get a grey stripe on the right side of the screen - see picture (fuzzy to reduce file size). Why does this happen? Clicking any icon on the grey stripe dismisses it. I thought that, with coherence, the VM desktop icons would appear on the host desktop, but that doesn't happen. I have to open a VM Finder window and navigate to the desktop to see them. Is this a setting somewhere? Any help appreciated. Cheers!